Improved dumping-car for coal-mines



2 Sheets-Sheet 1.

SMITH & STEVENS.

Dmping-Wagon.

Patented Oct. 9. 1866.

rLPETEHS. PHOTOMTHGGRAPHER, WASHINGTON, D C.

- 2 Shees-Sheet 2. lSMITH &, STEVENS.

Dumping-Wagon. No. 58,736. Patented OGL. 9, 1866.

N.PETERS. PHOTWLITHUGRAPHER. WASHINGTON D C.

UNITED STATES PATENT EEIE.

M. G. SMITH AND VILLIAM P. STEPHENS, OF KINGSTON, PENNSYLVANIA, ASSIGNORS TO M. G. SMITH, OF SAME PLACE.

IMPROVED DUMPlNG-CAR FOR COAL-MINES.

Specification forming part of Letters Patent N0. 58,736, dated October 9, 1866.

To all whom 'it may concern:

Be it known that we, M. G. SMITH and WILLIAM P. STEPHENS, of Kingston, in the county of Luzerne and State of Pennsylvania, have invented a new and Improved Dumping- Garriage for Coal-Mines and other purposes; and we do hereby declare that the following is a full, clear, and exact description thereof, which will enable those skilled 'in the art to make and use the same, reference being had to the accompanying drawings, forming part of this specification.

This invention relates to carriages for coal and other mines, and other purposes, where loads are to be raised or lowered and discharged.

Figure lis a longitudinal sectional elevation, showing the carriage elevated. Fig. 2 is also a longitudinal vertical sectional elevation, showing the carriage lowered. Fig. 3 is a side elevation, in part sectional, showing the carriage in a tilted position. Fig. 4 is a front elevation, showing the carriage elevated.

Similar letters of reference indicate similar parts in each of the gures.

A represents a frame made of any desired materials or dimensions, and properly supported by suitable braces B. C is the car for holding the load, made of any suitable materials or dimensions, and resting upon a carriage, D, constructed in any of the usual methods, being in this example composed of a plat- 1'orm,d, rabbeted gibs c, and cross-piecefi The gibs lit and move up and down upon guides G Gl G2 located at each side of the frame A.

A portion of each of the guides indicated by Gl is made adjustable upon pivots or hinges lz, at the lower ends of the said guides G1, as shown.

When the said guides G1 are in an upright position they connect with the stationary guides G2, thus forming continuous guides to the top of the frame, where the pulley I is located. The lifting-rope H connects with the carriage and passes over the pulley I to the driving power below.

J is an oscillating fan or support, the form of which is immaterial, but in this example consisting of a rock-shaft, j, and side-arms, j j. Attached to the rock-shaft and pivoted upon one end of shaft j is a weighted arm, L, of

which M is the weight, and m the rod by which the weight is attached to L. u is a catch or hook attached to L, and arranged in front of the fan J so as to pull the latter back into vcrtical position whenever the arm L is moved back. Upon the lower part of L there is a projection or lip, c, on which rests a latch, S, one end of which is loosely pivoted upon the shaft j. The other end of the lever S projects forward so as to engage the tripping-pin s, which projects from the side of the platform cl.

N is an elbow-dog, pivoted at t to frame A. The lower arm, a, of the dog N forms a latch, which engages the top of the arm L. The otherarm, c, ofthe dog Nengages with a tooth, a, upon the underside of a connecting-rod, Q, which extends from the dog N to the side of the gib G1, on which the rod Q is pivoted.

O is a connecting-rod, pivoted at one end to the fan J, and at the other to an arm, P, the lower end of which arm P is pivoted to frame A. The object of rod O and arm P is to govern the extent of the inward movement of fan J, so as to bring the upper end of the fan into the proper position under the carriage when the latter is settled for tilting.

Under the platform d and attached thereto are two catches, x and the operation ofthe rod O and arm P is such as to place the arms jj of the fan J in such position that the said arms will engage the said catches ma when the carriage is settled. The backward movement of the fan J is limited by the pin y, which projects from lthe frame A, so that the arm j of the fan will strike against and be arrested by the pin. In its forward movement the arm P is arrested by contact with the guide G1.

It, Fig. 4,'is the door of the car, hung by hinges and secured in its place by a latch, S. T is an upright post or bar attached to frame A, and so arranged that, when the carriage begins to tilt, the bar T engages the latch S of the doorR of the car and throws it off the catch, allowing the door to open and discharge the load.

The operation is as follows: Power is applied to the rope H, and by drawing it down the carriage D is raised to the proper height, or until the platform d passes above the top of the fan or support J, when the rope is slackened and the carriage settles down and rests at one end upon the arms of said fan or support, which throws the carriage and the adjustable guides forward into a position sufciently inclined to discharge the -load from the carriage, as shownin Fig. 3. For-the purpose of lowering the carriage the power is again applied to the rope which raises the carriage and brings the adjustable guides G1 into an upright position, which movement also car ries back the rod Q, the tooth c of which, in its backward movement, acts upon the dog N and releases it from the arm L, and the weight M then acts upon the arm L and its hook u, to bring the fan or support into an upright position clear from the carriage, so that the carriage can be lowered into the shaft. Vhen the carriage descends the trip-pin s upon the platform presses down the latch S, which throws the fan J and its arm L forward, and the latter becomes locked by dog N. The fan J now occupies a position slightly inclined, and has a limited but free oscillation upon its shaft, so that when the carriage next rises its platform pushes back the fan J but as soon as the platform has risen above the fan the latter then falls forward again into the inclined position, and when the carriage is settled' the arms of the fan j j engage the catches as a: under the platform, as before described, and by the continued settling` of the carriage the latter, together with the guides G1 and the fan J, settle into the inclined position for the discharge of the load, as shown in Fig. 3.

Having thus described our invention, we

claim as new, and desire to secure by Letters Patent-` l. The tilting or adjustable guides G1 G1, constructed and operating substantially as shown and described.

2. The use of the fan J or its equivalent, for the purpose of tilting or inclining self-dumping carriages so as to dump or unload the car without removing it from the carriage while slacking off, substantially as herein shown and described.

3. The combination of a fan or support with the adjustable guides, substantially as shown and described.

4. The combination of the weighted arm L with the fan or support, substantially as herein shown and described.

5. The combination of the dog N with the weighted lever L and fan J, substantially as herein shown and described.

6. The combination of the hook n with the arm L and fan J, substantially as herein shown and described.

7. The combination of the latch S with the arm L, substantially in the manner herein shown and described.

8. The combination ot the bar O and arm P with the fan J and guide G1, substantially as and for the purpose herein shown and described.

M. G.' SMITH. WM. P. STEPHENS.

Witnesses:

R. J. WIsNEn, SoLoN C. KEMON. 

